Storage: getItem() method
The getItem()
method of the Storage
interface, when passed a key name, will return that key's value, or null
if
the key does not exist, in the given Storage
object.
Syntax
js
getItem(keyName)
Parameters
keyName
-
A string containing the name of the key you want to retrieve the value of.
Return value
A string containing the value of the key. If the key does not exist,
null
is returned.
Examples
The following function retrieves three data items from local storage, then uses them to set custom styles on a page.
js
function setStyles() {
const currentColor = localStorage.getItem("bgcolor");
const currentFont = localStorage.getItem("font");
const currentImage = localStorage.getItem("image");
document.getElementById("bgcolor").value = currentColor;
document.getElementById("font").value = currentFont;
document.getElementById("image").value = currentImage;
htmlElem.style.backgroundColor = `#${currentColor}`;
pElem.style.fontFamily = currentFont;
imgElem.setAttribute("src", currentImage);
}
Note: To see this used within a real-world example, see our Web Storage Demo.
Specifications
Specification |
---|
HTML Standard # dom-storage-getitem-dev |
Browser compatibility
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